Finding the Fourth Proportional to 12,097.87, 18,137.86 and 5,079.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,097.87 : 18,137.86 = 5,079.96 : x
2. Step 2: Convert to fraction form
   12,097.87/18,137.86 = 5,079.96/x
3. Step 3: Cross multiply
   12,097.87x = 18,137.86 × 5,079.96
4. Step 4: Simplify right side
   12,097.87x = 92,139,590.59
5. Step 5: Solve for x
   x = 92,139,590.59/12,097.87
6. Step 6: Final answer
   x = 7,616.18